Roundabout

Where you'll see it

On any road where there are multiple roads intersecting

What it means

To indicate that you must move in a clockwise direction at the junction

What you must do

Yield right of way to vehicle approaching from the right within the roundabout, where such vehicles are close enough to cause a danger or potential danger. Proceed clockwise at the junction if it is safe to do so. 3.3. PROHIBITION SIGNS

Source: Signs manual R137, TR137